BDB667
מַאְפֵּלְיָה noun feminine deep darkness (= מַאֲפֵל יָהּ according to Thes MV compare Song 8:6 שַׁלְהֶבֶתְיָה; but Ew§ 165 b & on Jer 2:31 reads מַאְפִּלִיָה feminine of [מאפלי], derived from Hiph`il Participle; compare Sta§ 302 b מַאְפְּלִיָּה; JägerBAS 471 thinks this יָה an enclitic particle of emphasis, & compare Assyrian) — only ׳ אֶרֶץ מ Jer 2:31 figurative of ׳ י in dealing with his people (|| מִרְבָּר).
אֶפְלָל see below פלל . p. 813.